Reetz, Manfred T.; Drewes, Mark W.; Schmitz, Alfred, Angewandte Chemie, 1987, vol. 99, # 11, p. 1186 - 1188
作者:Reetz, Manfred T.、Drewes, Mark W.、Schmitz, Alfred
DOI:——
日期:——
Selective N-dealkylation of tertiary amines derived from phenylglycinol or ephedrine family
作者:Claude Agami、François Couty、Gwilherm Evano
DOI:10.1016/s0040-4039(99)00594-8
日期:1999.5
Tertiary amines bearing an hydroxyethyl group derived from phenylglycinol, norephedrine or norpseudoephedrine can be selectively dealkylated using a two-step sequence involving treatment with thionyl chloride in THF, followed by reaction with an excess of potassium cyanide in THF:DMSO. These conditions are compatible with the presence of an insaturation or a benzyl ether in the substrate. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.
REETZ, M. T.;DREWES, M. W.;SCHMITZ, A.;HOLDGRUN, X.;WUNSCH, T.;BINDER, J., PHIL. TRANS. ROY. SOC. LONDON, 326,(1988) N 1592, C. 573-578
作者:REETZ, M. T.、DREWES, M. W.、SCHMITZ, A.、HOLDGRUN, X.、WUNSCH, T.、BINDER, J.
DOI:——
日期:——
Stereoselective Arylation of Amino Aldehydes: Overriding Natural Substrate Control through Chelation
作者:Bruna S. Martins、Angélica V. Moro、Diogo S. Lüdtke
DOI:10.1021/acs.joc.7b00215
日期:2017.3.17
reaction of chiral, enantiopure acyclic α-amino aldehydes enabled by a B/Zn exchange reaction between arylboronic acids and Et2Zn is reported. The presence of dibenzyl substituents at the nitrogen plays a key role in the stereochemical outcome of the reaction, and chelation is favored over the natural tendency of this type of substrate to undergo Felkin–Anh controlled additions with organomagnesium and organolithium